Sampler-injector for liquid chromatography

Details Sampler-injector for liquid chromatography Sampler-injector for liquid chromatography

B - Operations, Transporting

01

D

73/124

B01D 15/08 (2006.01) G01N 1/00 (2006.01) G01N 30/24 (2006.01)

Patent

CA 1052127

ABSTRACT OF THE DISCLOSURE The present invention relates to an automatic sampler-injector for use in liquid chromatographic analyti- cal procedures and to a method for automatically sampling and injecting consistently uniform volumes of solution into a liquid chromatographic column. There are two main parts to the automatic sampler-injector, namely a sample con- tainer in the form of an open ended cylinder with a stopper fitted into the open end which can be pierced by a needle and means for removing a sample from this sample con- tainer, measuring the sample and injecting the sample into the liquid chromatographic column. This means for removing a sample includes a sharply pointed hollow needle, means for positioning the sample container beneath the needle, means or contacting the stopper with the needle, a con- duit connecting the needle with a ported valving system and a conduit connecting the liquid chromatographic column with the valving system.

239150

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